Rope winding device, rope tensioning device and ball net frame

ABSTRACT

A rope winding device includes a rope winding seat, a rope reel shaft, a ratchet and a handle. Opposite ends of the rope reel shaft pass through the rope winding seat and are rotatably connected with the rope winding seat. One end of the rope reel shaft is provided with a gear, the ratchet is rotatably mounted on the rope winding seat and meshed with the gear, and the other end of the rope reel shaft is connected with the handle. A rope tensioning device including the rope winding device is provided. A ball net frame including a net and the rope tensioning device is provided. The rope winding device, the rope tensioning device and the ball net frame are detachably assembled, which is convenient for carrying and storing and can realize rapid tensioning of the tension rope.

FIELD

The present invention relates to the field of sports equipment, in particular to a rope winding device, a rope tensioning device and a ball net frame.

BACKGROUND

As people pay more attention to physical exercise, ball sports such as badminton, volleyball, and tennis require not only rackets but also net frames for auxiliary use. In the related art, the base and the net are generally fixedly installed on the ground. In order to increase the stability of the net frame, weights are generally added to the basis of the pole of the frame, which increases the volume of the net frame and make it not easy to move and carry the net frame. Furthermore, the net of the fixed net frame has to withstand wind and the sun daily, which makes the net age and break easily, thereby greatly reducing the service life of the net.

In order to facilitate portability, some foldable net frames appear on the market. However, the folded net frame still occupies a large space and the net supported by this kind of frame does not have good flexibility. Furthermore, the degree of tension of the net is difficult to reach the required standard when the net is pulled on both sides.

SUMMARY

In order to solve the technical problems described above, the present invention provides an improved rope winding device, a rope tensioning device and a ball net frame, which is convenient for carrying and storing, easy for using and capable of stretching the net with enough tension.

In one aspect, the present invention provides a rope winding device which includes a rope winding seat, a rope reel shaft, a ratchet and a handle, wherein opposite two ends of the rope reel shaft pass through the rope winding seat and are rotatably connected with the rope winding seat, one end of the rope reel shaft is provided with a gear, the ratchet is rotatably mounted on the rope winding seat and meshed with the gear, and the other end of the rope reel shaft is connected with the handle.

Preferably, a rope hole penetrates through the rope reel shaft for extension of a rope.

Preferably, a connecting shaft with a non-circle cross section is coaxially arranged at the other end of the rope reel shaft, the handle is provided with a connecting hole with a non-circle cross section into which the connecting shaft can be inserted to thereby detachably connect the handle to the rope reel shaft.

Preferably, the cross sections of the connecting shaft and the connecting hole are square.

In another aspect, the present invention provides a rope tensioning device which comprises the rope winding device described above.

Preferably, the rope tensioning device further includes two supporting rods and a tension rope, each supporting rod is provided with a hoist ring at a top end thereof, the rope winding device is attached to one of the supporting rods, one end of the tension rope passes through the hoist ring at the top of one of the supporting rods and is connected to the rope winding device, the other end of tension rope is connected to the hoisting ring at the top end of the other of the supporting rods.

Preferably, the supporting rod comprises an upper rod and a lower rod detachably connected together.

Preferably, the rope tensioning device further comprises a fixed rope, a stopper and a fixed pile, one end of the fixed rope is fixed to ground by the fixed pile, the other end of the fixed rope passes through one of the hoist rings to be fastened to the stopper.

Preferably, the stopper defines two through holes, said one end of the fixed rope passes through one of the through holes before being fixed to the fixed rope, and said the other end of the fixed rope passes through the other of the through holes and is tied with a knot to thereby be fastened to the stopper.

In another aspect, the present invention provides a ball net frame which comprises a net and the rope tensioning device described above, wherein the rope tensioning device is configured to stretch and fix the net.

Preferably, the net is provided with an upper net belt and a lower net belt respectively at upper and lower sides thereof, and the lower net belt at the lower side of the net is provided with several leaking holes.

Preferably, the tension rope passes through the upper net belt to tighten the net.

The embodiments of the present invention have the following benefits:

The rope winding device has a simple structure. The handle and the rope reel shaft can be detachably connected together, which is convenient for carrying and storing. In addition, by connecting the tension rope with the rope reel shaft, the tension rope is retracted and pulled by the handle to drive the rope reel shaft to rotate, thereby exerting a tensioning effect on the tension rope. When a certain degree of tension is reached, the meshing of the ratchet and the gear can be used to limit the position of the rope reel shaft.

When a rope tensioning device uses the rope winding device, the handle rotates once to drive the rope reel shaft to rotate once, which can realize the rapid tensioning of the tension rope, thereby greatly improving the operation efficiency.

When a ball net frame adopts the rope tensioning device, the rope tensioning device can not only tighten the net but also strengthen the stability of the all net frame to prevent the ball net frame from toppling when the ball is struck vigorously.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a rope winding device in accordance with an embodiment of the present invention.

FIG. 2 is an exploded view of FIG. 1 .

FIG. 3 illustrates the relationship between the gear and the ratchet when the rope winding device is at a state of retracting the rope.

FIG. 4 is a partial view of a rope tensioning device in accordance with an embodiment of the present invention.

FIG. 5 is an enlarged view of an encircled portion A of FIG. 4 .

FIG. 6 is an enlarged view of an encircled portion B of FIG. 4 .

FIG. 7 illustrates a ball net frame in accordance with an embodiment of the present invention.

Reference numbers: 10—rope winding device; 11—rope winding seat; 12—rope reel shaft; 13—ratchet; 14—handle; 15—gear; 16—connecting shaft; 20—supporting rod; 21—ring; 22—upper rod; 23—lower rod; 30—tension rope; 40—fixed rope; 50—stopper; 51—through hole; 60—fixed pile; 70—ball net; 71—sleeve; 72—net belt; 80—buckle

DESCRIPTION OF THE EMBODIMENTS

The technical solution of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are parts of the present invention, not all of the embodiments. It should be noted that several variations and improvements can be made by those of ordinary skills in the art without departing from the concept of the present invention, and shall be construed as falling within the protection scope of the present invention.

Referring to FIGS. 1 to 3 , a rope winding device in accordance with an embodiment of the present invention includes a rope winding seat 11, a rope reel shaft 12, a ratchet 13 and a handle 14. The two ends of the rope reel shaft 12 pass through the rope winding seat 11 and are rotatably connected with the rope winding seat 11. One end of the rope reel shaft 12 is provided with a gear 15, and the ratchet 13 is rotatably mounted on the rope winding seat 11 and meshed with the gear 15. The other end of the rope reel shaft 12 is connected with the handle 14.

The rope winding device 10 of the present invention has a simple structure. The handle 14 and the rope reel shaft 12 can be detachably connected, which is convenient for carrying and storing. In addition, by connecting the tension rope 30 with the rope reel shaft 12, when the rope reel shaft 12 is driven to rotate through the handle 14, the tension rope 30 wound on the rope reel shaft 12 can be stretched to achieve a tension effect. When a certain degree of tension is reached, the ratchet 13 is driven to mesh with the gear 15 to thereby lock/stop the rope reel shaft 12. When the tension rope 30 needs to be retracted, the ratchet wheel 13 is disengaged from the gear 15 to thereby release the rope reel shaft 12. Without the limit of the ratchet 13, the gear 15 and the rope reel shaft 12 can rotate in the opposite direction, and thus the tension rope 30 is “retracted”.

In order to facilitate the fixation of the tension rope 30 and the rope winding device 10, a rope hole 17 penetrates through the middle of the rope reel shaft 12, and the tension rope 30 passes through the rope hole 17 and is tied with a knot to thereby fasten the tension rope 30 to the rope reel shaft 12.

In order to realize easy storage, the handle 14 is detachably connected with the rope reel shaft 12, a connecting shaft 16 with a non-circle cross section is coaxially arranged at the other end of the rope reel shaft 12. The handle 14 is provided with a connecting hole (not shown) with a non-circle cross section into which the connecting shaft 16 can be inserted. The connecting shaft 16 is inserted into the connecting hole so that the handle 14 is detachably connected to the rope reel shaft 12. In the preferred embodiment, the cross sections of the connecting shaft 16 and the connecting hole are square. The design of the square connecting shaft 16 realizes the detachable connection of the handle 14 and the rope reel shaft 12 on the one hand, and on the other hand prevents relative rotation between the handle 14 and the rope reel shaft 12.

Understandably, the handle 14 and the rope reel shaft 12 can also be connected by welding. Specifically, the square connecting shaft 16 is inserted into the connecting hole of the handle 14 and then welded. Thus, the handle 14 is fixedly connected with the rope reel shaft 12 and is not easy to be damaged during rotation.

Referring to FIGS. 4 to 6 , a rope tensioning device includes the above-mentioned rope winding device 10, two symmetrically arranged supporting rods 20 and a tension rope 30. The supporting rod 20 includes an upper rod 22 and a lower rod 23 detachably connected to each other. The top ends of the two upper rods 22 are each provided with a hoisting ring 21. The rope winding device 10 is installed at the middle of one of the lower rods 23. One end of the tension rope 30 passes through the hoisting ring 21 located at the top end of one of the upper rods 22 and is connected with the rope winding device 10 located at the middle of the lower rod 23. The other end of the tension rope 30 is connected with the hoisting ring 21 at the top end of the other upper rod 22.

The rope tensioning device of the present invention adopts the rope winding device 10. The handle 14 rotates one turn to drive the rope reel shaft 12 to rotate one turn, which can realize the rapid tensioning of the tension rope 30, thereby greatly improving the operation efficiency.

In the embodiment, only one rope winding device 10 is used. It is also possible to provide a rope winding device 10 on each of the two supporting rods 20, so that both ends of the tension rope 30 pass through the hoisting rings 21 on the top ends of the upper rods 22 respectively and are connected to the corresponding rope winding devices 10 at the middle of the lower rods 23.

In order to realize the tightening and fixing of the rope tensioning device, the rope tensioning device further includes a fixed rope 40, a stopper 50 and a fixed pile 60. The stopper 50 is provided with two through holes 5. One end of the fixed rope 40 passes through one of the through holes 51 and is connected to the fixed pile 60 which is fixed on the ground. The other end of the fixed rope 40 passes through the hoisting ring 21, and then passes through the other through hole 51 to be tied with a knot and fastened to the stopper 50.

Further, the rope tensioning device further includes a buckle 80 which is connected to the hoist ring 21. The other end of the fixed rope 40 passes through the buckle 80, and then passes through the other through hole 51 to be tied with a knot and fastened to the stopper 50.

In this embodiment, two fixed ropes 40 are provided and thus two sets of stoppers 50 and fixed piles 60 are provided. By two fixed ropes 40 being fixed to the ground, a balance of force is achieved between the two fixed ropes 40 and the associated tension rope 30 so that on the one hand, the supporting rod 20 is arranged vertically and the bottom end of the supporting rod 20 does not need to be fixed to the ground; on the other hand, the tension rope 30 is kept tensioned.

Referring to FIG. 7 , a ball net frame includes the above-mentioned rope tensioning device and a ball net 70. The rope tensioning device includes a rope winding device 10, two supporting rods 20, a tension rope 30, a fixed rope 40, stoppers 50 and fixed piles 60. The net 70 is stretched and fixed by the rope tensioning device. Specifically, the two sides of the net 70 are provided with sleeves 71 which are sleeved on the upper rods 22 of the supporting rods 20 so that the two sides of the net 70 are fixedly connected with the upper rods 22. The upper rods 22 are then assembled to the corresponding lower rods 23. One end of the tension rope 30 is fixed/tied with the hoisting ring 21 of the upper rod 22 on the right side. The other end of the tension rope 30 follows the upper end of the net 70 from the right side to the left side and then passes through the hoisting ring 21 on the left side of the net 70 and is fastened with the rope winding device 10 at the lower rod 23 on the left side of the net 70. By turning the handle 14 to realize the tensioning of the tension rope 30, the net 70 is unfolded and the surface of the net 70 is stretched. Two sets of fixed ropes 40 pass through the same buckle 80, one end of each fixed rope 40 passes through the stopper 50 to connect to the fixed pile 60 which is fixed to the ground, and the other end of the fixed rope 40 is tied/fastened with the stopper 50 after passing through the buckle 80. The supporting rods 20 are maintained vertically by the fixed ropes 40. The bottom ends of the lower rods 23 can touch the ground. Alternatively, the bottom ends of the lower rods 23 is spaced from the ground.

The ball net frame of the present invention can not only tighten/stretch the ball net 70 but also strengthen the stability of the ball net frame to prevent the ball net frame from falling down when the ball is struck vigorously.

The net frame is often exposed to outside. In order to prevent water from entering the net 70, the upper and lower sides of the net 70 are respectively provided with net belts 72 and the lower net belt 72 at the lower side is provided with several leaking holes 722. The tension rope 30 pass through the upper net belt 72 to tighten/stretch the net 70.

The embodiments above only provide specific and detailed descriptions of several implementations of the present invention, and therefore should not be construed to limit the patent scope of the present invention. It should be noted that several variations and improvements can be made by those of ordinary skills in the art without departing from the concept of the present invention, and shall be construed as falling within the protection scope of the present invention. Therefore, the patent protection scope of the present invention shall be subjected to the accompanying claims. 

What is claimed is:
 1. A rope winding device including a rope winding seat, a rope reel shaft, a ratchet and a handle, wherein opposite two ends of the rope reel shaft pass through the rope winding seat and are rotatably connected with the rope winding seat, one end of the rope reel shaft is provided with a gear, the ratchet is rotatably mounted on the rope winding seat and meshed with the gear, and the other end of the rope reel shaft is detachably connected with the handle.
 2. The rope winding device according to claim 1, wherein a rope hole penetrates through the rope reel shaft for extension of a rope.
 3. The rope winding device according to claim 1, wherein a connecting shaft with a non-circle cross section is coaxially arranged at the other end of the rope reel shaft, the handle is provided with a connecting hole with a non-circle cross section into which the connecting shaft can be inserted to thereby detachably connect the handle to the rope reel shaft.
 4. The rope winding device according to claim 3, wherein the cross sections of the connecting shaft and the connecting hole are square.
 5. A rope tensioning device comprising the rope winding device according to claim
 1. 6. The rope tensioning device according to claim 5, wherein the rope tensioning device further includes two supporting rods and a tension rope, each supporting rod is provided with a hoist ring at a top end thereof, the rope winding device is attached to one of the supporting rods, one end of the tension rope passes through the hoist ring at the top of one of the supporting rods and is connected to the rope winding device, the other end of tension rope is connected to the hoisting ring at the top end of the other of the supporting rods.
 7. The rope tensioning device according to claim 6, wherein the supporting rod comprises an upper rod and a lower rod detachably connected together.
 8. The rope tensioning device according to claim 6, wherein the rope tensioning device further comprises a fixed rope, a stopper and a fixed pile, one end of the fixed rope is fixed to ground by the fixed pile, the other end of the fixed rope passes through one of the hoist rings to be fastened to the stopper.
 9. The rope tensioning device according to claim 8, wherein the stopper defines two through holes, said one end of the fixed rope passes through one of the through holes before being fixed to the fixed rope, and said the other end of the fixed rope passes through the other of the through holes and is tied with a knot to thereby be fastened to the stopper.
 10. A ball net frame comprising: a net; and a rope tensioning device configured to stretch and fix the net, the rope tensioning device comprising a rope winding device which comprises a rope winding seat, a rope reel shaft, a ratchet and a handle, wherein opposite two ends of the rope reel shaft pass through the rope winding seat and are rotatably connected with the rope winding seat, one end of the rope reel shaft is provided with a gear, the ratchet is rotatably mounted on the rope winding seat and meshed with the gear, and the other end of the rope reel shaft is detachably connected with the handle.
 11. The ball net frame according to claim 10, wherein the net is provided with an upper net belt and a lower net belt respectively at upper and lower sides thereof, and the lower net belt at the lower side of the net is provided with several leaking holes.
 12. The ball net frame according to claim 10, wherein the rope tensioning device further includes two supporting rods and a tension rope, each supporting rod is provided with a hoist ring at a top end thereof, the rope winding device is attached to one of the supporting rods, one end of the tension rope passes through the hoist ring at the top of one of the supporting rods and is connected to the rope winding device, the other end of tension rope is connected to the hoisting ring at the top end of the other of the supporting rods.
 13. The ball net frame according to claim 12, wherein the supporting rods each comprises an upper rod and a lower rod detachably connected together, the net comprises two sleeves at opposite sides thereof, and the sleeves are respectively sleeved on the upper rods.
 14. The ball net frame according to claim 13, wherein the bottom ends of the lower rods are spaced from the ground.
 15. The ball net frame according to claim 13, wherein the bottom ends of the lower rods contact the ground.
 16. The ball net frame according to claim 12, wherein the rope tensioning device further comprises a plurality of fixed ropes, a plurality of stoppers, two connecting rings and two fixed piles, each connecting ring is movably connected to a corresponding hoist ring, each of the fixed ropes comprises an end fixed to ground by one of the fixed piles and another end passing through a corresponding connecting ring to be fastened to a corresponding stopper.
 17. The ball net frame according to claim 16, wherein the stopper defines two through holes, said an end of the fixed rope passes through one of the through holes before being fixed to the fixed pile, and said another end of the fixed rope passes through the other of the through holes and is tied with a knot to thereby be fastened to the corresponding stopper.
 18. The ball net frame according to claim 12, wherein the net is provided with an upper net belt at an upper side thereof, and the tension rope passes through the upper net belt to tighten the net. 